Effect of Hydrothermal Treatment of Zirconium Phosphate Xerogel on its Surface Groups Properties and Affinity Adsorption to Cd (II) ions from Acidic Solutions

Author(s):  
W. Janusz ◽  
V. Sydorchuk ◽  
E. Skwarek ◽  
S. Khalameida
2021 ◽  
pp. 117154
Author(s):  
Władysław Janusz ◽  
Vladimir Sydorchuk ◽  
Ewa Skwarek ◽  
Svietlana. Khalameida

1986 ◽  
Vol 56 (03) ◽  
pp. 349-352 ◽  
Author(s):  
A Tripodi ◽  
A Krachmalnicoff ◽  
P M Mannucci

SummaryFour members of an Italian family (two with histories of venous thromboembolism) had a qualitative defect of antithrombin III reflected by normal antigen concentrations and halfnormal antithrombin activity with or without heparin. Anti-factor Xa activities were consistently borderline low (about 70% of normal). For the propositus’ plasma and serum the patterns of antithrombin III in crossed-immunoelectrophoresis with or without heparin were indistinguishable from those of normal plasma or serum. A normal affinity of antithrombin III for heparin was documented by heparin-sepharose chromatography. Affinity adsorption of the propositus’ plasma to human α-thrombin immobilized on sepharose beads revealed defective binding of the anti thrombin III to thrombin-sepharose. Hence the molecular defect of this variant appears to be at the active site responsible for binding and neutralizing thrombin, thus accounting for the low thrombin inhibitory activity.


2018 ◽  
Author(s):  
Pierre Marcasuzaa ◽  
Samuel Pearson ◽  
Karell Bosson ◽  
Laurence Pessoni ◽  
Jean-Charles Dupin ◽  
...  

A hierarchically structured platform was obtained from spontaneous self-assembly of a poly(styrene)-<i>b</i>-poly(vinylbenzylchloride) (PS-<i>b</i>-PVBC) block copolymer (BCP) during breath figure (BF) templating. The BF process using a water/ethanol atmosphere gave a unique double porosity in which hexagonally arranged micron-sized pores were encircled by a secondary population of smaller, nano-sized pores. A third level of structuration was simultaneously introduced between the pores by directed BCP self-assembly to form out-of-the-plane nano-cylinders, offering very rapid bottom-up access to a film with unprecedented triple structure which could be used as a reactive platform for introducing further surface functionality. The surface nano-domains of VBC were exploited as reactive nano-patterns for site-specific chemical functionalization by firstly substituting the exposed chlorine moiety with azide, then “clicking” an alkyne by copper (I) catalyzed azide-alkyne Huisgen cycloaddition (CuAAC). Successful chemical modification was verified by NMR spectroscopy, FTIR spectroscopy, and XPS, with retention of the micro- and nanostructuration confirmed by SEM and AFM respectively. Protonation of the cyclotriazole surface groups triggered a switch in macroscopic behavior from a Cassie-Baxter state to a Wenzel state, highlighting the possibility of producing responsive surfaces with hierarchical structure.


Food Industry ◽  
2018 ◽  
Vol 3 (4) ◽  
Author(s):  
Albert H-H. Nugmanov ◽  
Olesya A. Aleksanyan ◽  
Miguel A. S. Barzola

2015 ◽  
Vol 14 (3) ◽  
pp. 601-605 ◽  
Author(s):  
Cristina M. Ursescu ◽  
Angelica Olaru ◽  
Teodor Malutan. ◽  
Maria Geba ◽  
Corina Malutan

2017 ◽  
Vol 66 (5) ◽  
pp. 172-179 ◽  
Author(s):  
H. H. Abo-Almaged ◽  
A. F. Moustafa ◽  
A. M. Ismail ◽  
S. K. Amin ◽  
M. F. Abadir

2007 ◽  
Vol 13 (18) ◽  
pp. 5572s-5576s ◽  
Author(s):  
Linda Mårtensson ◽  
Rune Nilsson ◽  
Tomas Ohlsson ◽  
Hans-Olov Sjögren ◽  
Sven-Erik Strand ◽  
...  

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